Folder cleanup
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ayakael
parent
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3 changed files with 0 additions and 617 deletions
14
CHANGELOG
14
CHANGELOG
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@ -1,14 +0,0 @@
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v0.3
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Beta version for decrypt script
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v0.3.1
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Fixes bug with log() function which added an extra line at every log
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v0.4
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Adds asyncronous drive opening
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v0.5
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Adds password function for systems with no keedrive
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v0.5.1
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Fixes bug in help parser
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7
LICENSE
7
LICENSE
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@ -1,7 +0,0 @@
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Copyright (c) 2016 Antoine Martin <antoine.martin@protonmail.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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596
bin/decrypt.sh
596
bin/decrypt.sh
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@ -1,596 +0,0 @@
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#!/usr/bin/ash
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# Global variables
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VERSION="0.5"
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STDERR=$(mktemp /tmp/STDERR.XXXXXXXXXX)
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INDENT=0
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WARN=false
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driveArray=()
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o_kch=false
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o_efi=false
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o_cfg=false
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o_mkcfg=false
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function log {
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if [ ${1} = "INDENT" ]; then
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if [ -z "${1}" ]; then
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INDENT="0"
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else
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shift
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INDENT=$((${INDENT} ${1} *6 ))
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fi
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elif [ ${1} = "EXEC" ]; then
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shift
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echo -en "$(tput cuf "${INDENT}") [ ] ${1}\n"
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elif [ ${1} = "OK" ]; then
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if [ -z "${2}" ]; then
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HEIGHT=1
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else
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HEIGHT=$(( ${2} + 1))
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fi
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echo -en "$(tput cuu "${HEIGHT}")$(tput cuf "${INDENT}") [$(tput bold)$(tput setaf 2) OK $(tput sgr0)]$(tput cub 100)$(tput cud "${HEIGHT}")"
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elif [ ${1} = "WARN" ]; then
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shift;
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if [ -z "${2}" ]; then
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HEIGHT=1
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else
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HEIGHT=$(( ${2} + 1))
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fi
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echo -en "$(tput cuu "${HEIGHT}")$(tput cuf "${INDENT}") [$(tput bold)$(tput setaf 3) WARN $(tput sgr0)]"
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echo -en "\n$(tput cuf "${INDENT}") [>>>>>>] ${1} \n"
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if [ -n "${STDERR}" ]; then
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cat ${STDERR}
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fi
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rm ${STDERR}
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STDERR=$(mktemp /tmp/STDERR.XXXXXXXXXX)
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echo -en "$(tput cub 100)$(tput cud "${HEIGHT}")"
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elif [ ${1} = "FAIL" ]; then
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shift;
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if [ -z "${2}" ]; then
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HEIGHT=1
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else
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HEIGHT=$(( ${2} + 1))
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fi
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echo -en "$(tput cuu "${HEIGHT}")$(tput cuf "${INDENT}") [$(tput bold)$(tput setaf 1) FAIL $(tput sgr0)]"
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echo -en "\n$(tput cuf "${INDENT}") [>>>>>>] ${1} \n"
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if [ -n "${STDERR}" ]; then
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cat ${STDERR}
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fi
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rm ${STDERR}
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STDERR=$(mktemp /tmp/STDERR.XXXXXXXXXX)
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echo -en "$(tput cuf "${INDENT}") [ ] Fatal error reported. Press any key to shutdown."
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read -n 1 -s
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echo -en "$(tput cub 100)$(tput cuf "${INDENT}") ["
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TIME=3
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while [ ${TIME} -ne 0 ]; do
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sleep 1;
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echo -en "||"
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TIME=$(( ${TIME}-1 ))
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done
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echo -en "\n$(tput cub 100)$(tput cud "${HEIGHT}")"
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exit
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elif [ ${1} = "ECHO" ]; then
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shift
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echo -e "$(tput cuf "${INDENT}") [======] ${1}"
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fi
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}
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function cfg_loader {
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if [ -z "${CFG}" ]; then
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CFG="/tmp/decrypt/mnt/decrypt/decrypt.cfg"
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fi
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if [ -z "${EFI}" ]; then
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EFI="/dev/disk/by-partlabel/EFI"
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fi
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log EXEC "Loading decrypt.cfg"
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mkdir -p /tmp/decrypt/mnt
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if [ "${o_cfg}" == false ]; then
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mount -r -t vfat "${EFI}" /tmp/decrypt/mnt >${STDERR} 2>&1
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if [ $? == 0 ]; then
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echo -n
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else
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log FAIL "Could not mount EFI partition"
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fi
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fi
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if [ -e "${CFG}" ]; then
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if egrep -q -v '^#|^[^ ]*=[^;]*' "${CFG}"; then
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log WARN "Unclean config detected. Someone may be doing something weird. Cleaning and then echoing"
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egrep '^#|^[^ ]*=[^;&]*' "${CFG}" > "/tmp/decrypt/decrypt.cfg"
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cat "/tmp/decrypt/decrypt.cfg"
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log ECHO "If it looks good, press any key to continue. If not, exit and clean it manually"
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read -n 1 -s
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source /tmp/decrypt/decrypt.cfg
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else
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log OK
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dd if=${CFG} of=/tmp/decrypt/decrypt.cfg >/dev/null 2>&1
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source /tmp/decrypt/decrypt.cfg
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fi
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if [ "${o_cfg}" == false ]; then
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umount /tmp/decrypt/mnt
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fi
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else
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log FAIL "Could not find decrypt.cfg."
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fi
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}
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function cfg_generator {
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log
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}
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function help {
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case ${1} in
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# Help for decrypt open
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open)
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echo -e "\033[1A
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Usage: decrypt open
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Opens encrypted drive array
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Opens encrypted drive array and mounts them to /dev/mapper/<partlabel> using the
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configuration file and keychain key found in the EFI partition (Any partition
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with 'EFI' as partlabel) in the ./decrypt subfolder. If there's no key drive,
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a password will be requested.
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"
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exit
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;;
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# Help for decrypt close
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close)
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echo -e "\033[1A
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Usage: decryt close
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Closes encrypted drive array
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Closes encrypted drive array, which implies unmounting them from /dev/mapper/<partlabel>.
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If the partitions are mounted to the local filesystem, this action will fail.
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"
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;;
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# Help for decrypt create
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create)
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echo -e "\033[1A
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Usage: decrypt create [--config-only=<output>] <keydrive> <efi> <devices>
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Creates encrypted drive array
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Creates encrypted drive array with the devices defined at the endby first generating a
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keydrive and a decypt subfolder in the efi partition. In this folder, a config file and
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a keychain key will be generated as well. The keychain key is used to unlock the keydrive.
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The config file is used to know what drives to open and which keydrive is used (Both via
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the partition UUIDs).
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For an encrypted drive array to be created, a few things must be done:
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* A partition with a PARTLABEL called 'EFI' formatted as FAT32. In the standard configuration,
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the EFI partition will also be where the boot files will live
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* An unformatted key-drive (Any removable device with a minimum of 4MB of unformatted space)
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* Unformatted partitions that will be encrypted
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* Use of the GPT partition scheme.
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--config-only=<output>
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This will only generate a config file
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"
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;;
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# Help for decrypt addkey
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addkey)
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echo -e "\033[1A
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Usage: decrypt addkey <key-drive>
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Add a keydrive to the drive array
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"
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;;
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# Help for decrypt --info
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info)
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echo -e "\033[1A
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Decrypt v${VERSION} written under the MIT license (see license) by Antoine Martin.
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"
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exit
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;;
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# Help for decrypt --help
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*)
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echo -e "\033[1A
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Usage: decrypt [--help] [--info] [<options>] <command> [<args>]
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Options
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--config=</path/to/config>
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In a setup where no EFI partition exists, or is not usable, you can manually
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specify the location of the configuration file. This is usually used in a recovery
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setting. Requires --keychain to be called. Ignored if command is 'decrypt create'
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--keychain=</path/to/keychain>
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In a setup where no EFI partition exists, or is not usable, you can manually
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specify the location of the keychain. This is usually used in a recovery setting.
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Requires --config to be called. Ignored if 'decrypt create' is called.
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--efi-partition=</path/to/efi/device>
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In a setup with multiple partitions that has EFI as partlabel, this option
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manually defines the efi partition. Within this partition, it will look
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for decrypt.cfg and kch in the ./decrypt subfolder. Ignored if 'decrypt create'
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is called. Ignored if --keychain or --config is called.
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Commands
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open
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Opens encrypted drive array
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close
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Closes encrypted drive arra
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create [--config-only=<output>] <keydrive> <efi> <devices>
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Creates an encrypted drive array
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NOTICE: Full drive array creation not yet supported, --config-only is forced on
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addkey <new-keydrive>
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Add a keydrive to the drive array
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NOTE: Function not supported yet
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remkey <old-keydrive>
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Remove a keydrive from the drive array
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NOTE: Function not supported yet
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"
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;;
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esac
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}
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#Recursive argument parser
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while true; do
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case ${1} in
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--help)
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help
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exit
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;;
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--info)
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help info
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exit
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;;
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--config=*)
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if [ -z "${1#*=}" ]; then
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help
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else
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log ECHO "--config called. Config file location defined as: ${1#*=}"
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CFG="${1#*=}"
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o_cfg=true
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fi
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;;
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--keychain=*)
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if [ -z "${1#*=}" ]; then
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help
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else
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log ECHO "--keychain called. Keychain file location defined as: ${1#*=}"
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KCH="${1#*=}"
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o_kch=true
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fi
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;;
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--efi-partition=*)
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if [ -z "${1#*=}" ]; then
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help
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else
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log ECHO "--efi-partition called. EFI partition defined as: ${1#*=}"
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EFI="${1#*=}"
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o_efi=true
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fi
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;;
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*)
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break
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;;
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esac
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shift
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done
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#Level 1 argument parser
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case ${1} in
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open)
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shift
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log ECHO "Executing decryption script"
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cfg_loader
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if [ -z ${kd[@]+x} ]; then
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KEYDRIVE_NAME=KCH
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if [ -z "${KCH}" ]; then
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mount -r -t vfat "/dev/disk/by-partlabel/EFI" /tmp/decrypt/mnt > ${STDERR} 2>&1
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if [ $? == 0 ]; then
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KCH="/tmp/decrypt/mnt/decrypt/kch"
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else
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log FAIL "Could not mount EFI partition"
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fi
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fi
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dd if="${KCH}" of="/tmp/decrypt/kch" > /dev/null 2>&1
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if [ $? == 1 ]; then
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log FAIL "Could not find keychain"
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fi
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log EXEC "Please input password"
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while true; do
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read -s PASSWD
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printf "%s" "${PASSWD}" | cryptsetup luksOpen "/tmp/decrypt/kch" ${KEYDRIVE_NAME} > ${STDERR} 2>&1
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if [ $? == 0 ]; then
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log OK
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break
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elif [ $? == 1 ] || [ $? == 2 ]; then
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log WARN "Keychain decryption failed."
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log EXEC "Please input password again"
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else
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log FAIL "Keychain decrypting failed"
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fi
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done
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else
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log EXEC "Looking for keydrive"
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while true; do
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currentDrive=1
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for i in ${kd[@]// /:}; do
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# Value extractor
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currentArray=$(echo "${i}" | sed "s/\:/ /g")
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currentArray=(${currentArray})
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if [ ${#currentArray[@]} != 1 ]; then
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echo "${currentArray[@]}" > ${STDERR}
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log FAIL "Bad configuration, expected only 1 element, echoing variables for keydrive ${currentDrive}"
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fi
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dd if="/dev/disk/by-partuuid/${currentArray[0]}" of="/tmp/decrypt/keychain" >/dev/null 2>&1
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if [ $? == 0 ]; then
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KEYDRIVE_NAME=$(lsblk --output=PARTLABEL /dev/disk/by-partuuid/${currentArray[0]} | sed '2q;d')
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log OK
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log INDENT +1
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log EXEC "Extracting keys from ${KEYDRIVE_NAME}"
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if [ -z "${KCH}" ]; then
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mount -r -t vfat "/dev/disk/by-partlabel/EFI" /tmp/decrypt/mnt > ${STDERR} 2>&1
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KCH="/tmp/decrypt/mnt/decrypt/kch"
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fi
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dd if="${KCH}" of="/tmp/decrypt/kch" >/dev/null 2>&1
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if [ $? == 1 ]; then
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log FAIL "Could not find keychain"
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break 2
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fi
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cryptsetup -d "/tmp/decrypt/kch" open --type plain "/tmp/decrypt/keychain" "${KEYDRIVE_NAME}" > ${STDERR} 2>&1
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if [ $? == 0 ]; then
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log OK
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break 2
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else
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log FAIL "Keychain decryption failed."
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break 2
|
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fi
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fi
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currentDrive=$((${currentDrive} +1))
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done
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sleep 0.5
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done
|
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fi
|
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log EXEC "Opening drives..."
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log INDENT +1
|
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currentDrive=1
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for i in ${ed[@]// /:}; do
|
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log EXEC "Opening drive ${currentDrive}"
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||||
# Value extractor
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||||
currentArray=$(echo "${i}" | sed "s/\:/ /g")
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currentArray=(${currentArray})
|
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if [ ${#currentArray[@]} != 3 ]; then
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echo "${currentArray[@]}" > ${STDERR}
|
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log FAIL "Bad configuration file, expected 3 elements, echoing variables for drive ${currentDrive}"
|
||||
fi
|
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# Device name extractor
|
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DEVICE_NAME=$(lsblk --output=PARTLABEL /dev/disk/by-partuuid/${currentArray[0]} | sed '2q;d')
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# Open cryptdevice
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cryptsetup -d "/dev/mapper/${KEYDRIVE_NAME}" --keyfile-offset=${currentArray[1]} --keyfile-size=${currentArray[2]} luksOpen "/dev/disk/by-partuuid/${currentArray[0]}" "${DEVICE_NAME}" > ${STDERR} 2>&1 &
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cryptsetup_pid[${currentDrive}]=$!
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currentDrive=$((${currentDrive} +1))
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done
|
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waitDrive=1
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for i in ${ed[@]// /:}; do
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wait ${cryptsetup_pid[${waitDrive}]}
|
||||
if [ $? == 0 ]; then
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log OK $(if [ ${currentDrive} == 2 ]; then echo ""; else echo "$(( ${currentDrive} - 2 ))"; fi)
|
||||
else
|
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log WARN "Drive ${curentDrive} open failed" $(if [ ${currentDrive} == 2 ]; then echo ""; else echo "$(( ${currentDrive} - 2 ))"; fi)
|
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WARN=true
|
||||
fi
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currentDrive=$((${currentDrive} -1))
|
||||
done
|
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log INDENT -1
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cryptsetup close ${KEYDRIVE_NAME}
|
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if [ ${WARN} == true ]; then
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||||
log ECHO "Non-fatal errors have occured. Some drives may not have opened properly, proceed with caution" ${#ed[@]}
|
||||
else
|
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log OK ${#ed[@]}
|
||||
log INDENT -1
|
||||
log ECHO "Decryption script complete"
|
||||
fi
|
||||
if [ "${o_cfg}" == false ]; then
|
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umount /tmp/decrypt/mnt
|
||||
fi
|
||||
|
||||
;;
|
||||
|
||||
close)
|
||||
shift
|
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cfg_loader
|
||||
log EXEC "Closing drives..."
|
||||
log INDENT +1
|
||||
currentDrive=1
|
||||
for i in ${ed[@]// /:}; do
|
||||
log EXEC "Closing drive ${currentDrive}"
|
||||
# Value extractor
|
||||
currentArray=$(echo "${i}" | sed "s/\:/ /g")
|
||||
currentArray=(${currentArray})
|
||||
if [ ${#currentArray[@]} != 3 ]; then
|
||||
echo "${currentArray[@]}" > ${STDERR}
|
||||
log FAIL "Bad configuration file, expected 3 elements, echoing variables for drive ${currentDrive}"
|
||||
fi
|
||||
|
||||
# Device name extractor
|
||||
DEVICE_NAME=$(lsblk --output=PARTLABEL /dev/disk/by-partuuid/${currentArray[0]} | sed '2q;d')
|
||||
# Open cryptdevice
|
||||
cryptsetup close "/dev/mapper/${DEVICE_NAME}" > ${STDERR} 2>&1
|
||||
if [ $? == 0 ]; then
|
||||
log OK
|
||||
else
|
||||
log WARN "Drive ${curentDrive} close failed"
|
||||
WARN=true
|
||||
fi
|
||||
currentDrive=$((${currentDrive} +1))
|
||||
done
|
||||
log INDENT -1
|
||||
if [ ${WARN} == true ]; then
|
||||
log ECHO "Non-fatal errors have occured. Some drives may not have closed properly, proceed with caution" ${#ed[@]}
|
||||
else
|
||||
log OK ${#ed[@]}
|
||||
fi
|
||||
;;
|
||||
|
||||
create)
|
||||
#TODO: Support full disk generation. For now, config generator only.
|
||||
o_mkcfg=true
|
||||
shift
|
||||
# Options parser
|
||||
case ${1} in
|
||||
--config-only=*)
|
||||
if [ -z "${1#*=}" ]; then
|
||||
help
|
||||
else
|
||||
log ECHO "--config-only called. Config generation output defined as: ${1#*=}"
|
||||
MKCFG="${1#*=}"
|
||||
o_mkcfg=true
|
||||
shift
|
||||
fi
|
||||
;;
|
||||
|
||||
esac
|
||||
|
||||
# Variable parser
|
||||
KEYDRIVE=${1}
|
||||
EFI=${2}
|
||||
|
||||
while true; do
|
||||
case ${3} in
|
||||
/dev*)
|
||||
driveArray=(${driveArray[@]} ${3})
|
||||
;;
|
||||
|
||||
*)
|
||||
break
|
||||
;;
|
||||
esac
|
||||
shift
|
||||
done
|
||||
|
||||
# Sanity check
|
||||
log EXEC "Sanity checking..."
|
||||
if [ -b ${KEYDRIVE} ]; then
|
||||
if [ -z "$(lsblk --output=FSTYPE ${KEYDRIVE} | sed '2q;d'| sed 's/\ //g')" ]; then
|
||||
echo -n
|
||||
else
|
||||
log FAIL "Requires ${KEYDRIVE} to be unformatted to be used as Keydrive"
|
||||
fi
|
||||
else
|
||||
log FAIL "${KEYDRIVE} block device does not exist"
|
||||
fi
|
||||
if [ -b ${EFI} ]; then
|
||||
if [ $(lsblk --output=FSTYPE ${EFI} | sed '2q;d'| sed 's/\ //g') == vfat ]; then
|
||||
echo -n
|
||||
else
|
||||
log FAIL "Requires ${EFI} to be formatted to vfat (F32) to be used as EFI partition"
|
||||
fi
|
||||
else
|
||||
log FAIL "${EFI} block device does not exist"
|
||||
fi
|
||||
for i in ${driveArray[@]}; do
|
||||
if [ -b ${i} ]; then
|
||||
if [ -z "$(lsblk --output=FSTYPE ${i} | sed '2q;d'| sed 's/\ //g')" ]; then
|
||||
echo -n
|
||||
else
|
||||
log FAIL "Requires ${i} to be unformatted to be used as encrypted drive"
|
||||
fi
|
||||
else
|
||||
log FAIL "${i} block device does not exist"
|
||||
fi
|
||||
done
|
||||
log OK
|
||||
|
||||
# Notice
|
||||
log ECHO "Notice: You are about to create an encrypted drive array with the following devices:"
|
||||
log INDENT +1
|
||||
log ECHO "EFI Partion: ${EFI}, $(lsblk --output=SIZE ${EFI} | sed '2q;d'| sed 's/\ //g'), $(lsblk --output=FSTYPE ${EFI} | sed '2q;d'| sed 's/\ //g')"
|
||||
log ECHO "Keydrive 1: ${KEYDRIVE}, $(lsblk --output=SIZE ${KEYDRIVE} | sed '2q;d' | sed 's/\ //g'), $(lsblk --output=FSTYPE ${KEYDRIVE} | sed '2q;d' | sed 's/\ //g')"
|
||||
currentDrive=1
|
||||
for i in ${driveArray[@]}; do
|
||||
log ECHO "Drive ${currentDrive}: ${i}, $(lsblk --output=SIZE ${i} | sed '2q;d'| sed 's/\ //g'), $(lsblk --output=FSTYPE ${KEYDRIVE} | sed '2q;d' | sed 's/\ //g')"
|
||||
currentDrive=$((${currentDrive} + 1))
|
||||
done
|
||||
log INDENT -1
|
||||
log ECHO "WARNING!"
|
||||
log INDENT +1
|
||||
log ECHO "This will overwrite data on all of these devices"
|
||||
log EXEC "Are you sure? (Type uppercase yes): "
|
||||
echo -en "\033[1A\033[53C"
|
||||
read confirm
|
||||
if [ ${confirm} == "YES" ]; then
|
||||
log OK
|
||||
else
|
||||
log FAIL "Input was not YES, exiting"
|
||||
fi
|
||||
log INDENT -1
|
||||
# Config generator
|
||||
log ECHO "Generating config file to EFI partition"
|
||||
log INDENT +1
|
||||
if [ -d "/tmp/decrypt" ]; then
|
||||
echo -n
|
||||
else
|
||||
mkdir /tmp/decrypt
|
||||
fi
|
||||
# Checks and mounts EFI partition
|
||||
if [ ${o_mkcfg} == false ]; then
|
||||
log EXEC "Mounting EFI partition"
|
||||
mount -t vfat "${EFI}" /tmp/decrypt/ >${STDERR} 2>&1
|
||||
if [ $? == 0 ]; then
|
||||
log OK
|
||||
log EXEC "Checking if decrypt.cfg already exists..."
|
||||
if [ -f "/tmp/decrypt/decrypt/decrypt.cfg" ]; then
|
||||
log WARN "decrypt.cfg already exists, renamed to decrypt.cfg.old"
|
||||
mv /tmp/decrypt/decrypt/decrypt.cfg /tmp/decrypt/decrypt/decrypt.cfg.old
|
||||
CFG="/tmp/decrypt/decrypt/decrypt.cfg"
|
||||
else
|
||||
CFG="/tmp/decrypt/decrypt/decrypt.cfg"
|
||||
log OK
|
||||
fi
|
||||
else
|
||||
log FAIL "Could not mount EFI partition"
|
||||
fi
|
||||
else
|
||||
CFG="${MKCFG}"
|
||||
fi
|
||||
log EXEC "Generating..."
|
||||
# Echo burst
|
||||
echo "#!/usr/bin/ash" > ${CFG}
|
||||
currentDrive=1
|
||||
for i in ${driveArray[@]}; do
|
||||
echo "sd[${currentDrive}]=$(lsblk --output=PARTUUID ${i} | sed '2q;d'| sed 's/\ //g') $((RANDOM%4194304+1)) 2048" >> ${CFG}
|
||||
currentDrive=$((${currentDrive} + 1))
|
||||
done
|
||||
echo "kd[1]=$(lsblk --output=PARTUUID ${KEYDRIVE} | sed '2q;d'| sed 's/\ //g')" >> ${CFG}
|
||||
log OK
|
||||
log INDENT -1
|
||||
if [ ${o_mkcfg} == false ]; then
|
||||
log EXEC "Generating keychain key"
|
||||
dd if=/dev/urandom of=/tmp/decrypt/decrypt/kch bs=512 count=4 > /dev/null 2>&1
|
||||
log OK
|
||||
cfg_loader
|
||||
log EXEC "Formatting drives"
|
||||
INDENT +1
|
||||
log EXEC "Keydrive..."
|
||||
fi
|
||||
;;
|
||||
|
||||
addkey)
|
||||
#TODO: Code this function
|
||||
shift
|
||||
help
|
||||
;;
|
||||
|
||||
remkey)
|
||||
#TODO: Code this function
|
||||
shift
|
||||
help
|
||||
;;
|
||||
|
||||
*)
|
||||
help
|
||||
;;
|
||||
esac
|
||||
Loading…
Reference in a new issue